hi...winter project is a 383 build. using afr 195 eliminator heads, target comp 10:1. cam and intake selection depends on the level of unusable or exccesive torque limits for a street car. so question is on a 3rd gen with sfc and boxed lca what is the level that torque becomes unusable...ie excessive tire shredding torque. it is a 5 spd with 308 gears..the gears/rear end will be changed later when the money is there and i know that it will be a weak link for now. just need to know torque limits so as to select right cam/intake. and yes it is staying fuel injected

 

depends on the tires you use. 245 street tire wont like much power compared to a 315 drag radial.

But i'd be more concerned with that 5 speed tranny. Is it a T5? I think you will find a torque limit with that

 

yes T5..not worried about tranny and rear being limitation as they will be built/replaced to handle what is required. just need to figure out the max torque so know what to pick for intake..ie FIRST, lt1, miniram, hsr,pro flo. each on will have different torque curves and peak numbers, just need to figure out where i want to max in torque to match with appropriate intake and cam

 

Just choose the cam/intake setup that will help you achieve a desired power level that you may have your mind set on, and build everything to handle it from there out, since you said you're going to be replacing the T5 and rear.

My drivetrain can easily handle the probably 450 crank HP and 370-380 LB-FT of torque I'll make.

T56:



New Centerforce DFX that was just delivered yesterday, current DFX has 9-10K very hard miles on it. 11 second passes in a Cobra, then dozens upon dozens of 0-100 runs in my GT.



And a hair dryer:



That would be a good setup for you to consider. The Fidanza/Centerforce DFX combo, and a T56.

 

reason i ask about torque level is i do not want to waste torque say with a FIRST intake if all it is going to do is smoke out the tires in 1st 2nd 3rd gear at will. i would rather find the right torque figure and match the intake to that...kinda like hsr...smaller torque figures but promotes more hp. motor will be able to spin to 6k rpm easy and target hp is 450 block...all set ups will achieve that goal but do not want more torque than can put to ground....with 1st gear not included in that statement as all combos with a stick tranny will be tire burners in 1st

 

More torque, just higher in the RPM range, making it more manageable. Horsepower = Torque X Engine RPM / 5,252.

I don't see why you'd want to "tune down" your car and give up on more mid-high range torque if possible. Make the most with what you can right now, and just build the thing to launch around it. Weight reduction off the front end most importantly, already got the SFCs which is a good start.

The exact route I'd take with this car would be the Fidanza flywheel/Centerforce clutch route, mildly built T56, Moser 9 inch, and sort out the rear suspension. If you want it to seriously hook, consider saving for a Spohn rear coilover setup with adjustable rates, Spohn torque arm, Spohn rear LCAs, and some pretty good tires. Can't go wrong with MT ET Street 315s or Nitto NT05Rs.

Weight off the front to mid of the car wouldn't hurt either. Stuff like ditching stock seats for some very light ~10LB Kirkey aluminum seats, battery relocation, ditching the AC, heat, radio if you don't mind.

 

Well, i like the shorter runner intakes like miniram and hsr which make a flat torque curve. Still can make alot of torque but its spread out over the rpm range, while TPI will have a big peak and drop off rapidly after that peak.

My 383 only made 380wtq and 400whp. (TPI guys with 350's have made that on milder setups) Heck my bolt on L98 with same intake made 315wtq. So a big 383 with huge cam/good heads, high compression only made 65lbft more? Well it made 146whp more Torque came out lower than I expected, but it was flat. That car could hook up at top of first gear in a 700r4 with 3.42 gears on 295/30/19 Bridgestone potenza's taken off a porsche 911. That motor also went 11.4's at 118-119 in the summer air which usually is 1-2mph and 2 tenths or so slower than in winter air.

I'd say go for a broad torque curve and go with a shorter runner intake. Your motor will have to rev higher but thats a good thing. Then just add good tires to allow it to hook up. Let HP run the car, so get up over 5252 rpm

EDIT: About tires...the same bridgestones would hook a 150shot on the street in second gear rolls if the road was warm. Sometimes slight spin. This is about the same power as my turbo motor on 8psi. It would hook a 2nd gear roll on from 40mph or so but anymore boost than that would blow tires off. Tires make a big difference on what you can hook on the street. That was probably over 500wtq.

 

thanks orr...that is the info that i am looking for

shadow...i will look into that flywhee clutch combo info